Question- Commercial lye is an alkaline mixture that contains mainly sodium hydroxide, but major impurities include sodium chloride, sodium carbonate, sodium chlorate, sodium sulfate, potassium and heavy metal such as iron and nickel. A 0.8500 g sample of commercial lye is dissolved in water and titrated with 35.00 mL of 0.5377 M HCl.
1) Write the balanced chemical equation.
2) What is the percent purity of the lye sample? (That is what is the mass percent of NaOH in the lye?)
I want to know how this is done please show all steps in detail